1806485454 has 24 divisors (see below), whose sum is σ = 3915366312. Its totient is φ = 601959600.

The previous prime is 1806485453. The next prime is 1806485509. The reversal of 1806485454 is 4545846081.

It is a happy number.

It is a super-2 number, since 2×1806485454² = 6526779391027172232, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1806485453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44217 + ... + 74619.

It is an arithmetic number, because the mean of its divisors is an integer number (163140263).

Almost surely, 2^1806485454 is an apocalyptic number.

1806485454 is an abundant number, since it is smaller than the sum of its proper divisors (2108880858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1806485454 is a wasteful number, since it uses less digits than its factorization.

1806485454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33712 (or 33709 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The square root of 1806485454 is about 42502.7699567922. The cubic root of 1806485454 is about 1217.8996050781.

The spelling of 1806485454 in words is "one billion, eight hundred six million, four hundred eighty-five thousand, four hundred fifty-four".